Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0
Firefox 124
Mac OS X 10.15
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 247561.8 Ops/sec
Native map deep slice(turns objects into arrays) 13357153.0 Ops/sec
Native JSON parse 440300.8 Ops/sec
Native map deep slice at 0(turns objects into arrays) 12168980.0 Ops/sec
Native map(shallow clone) 25205626.0 Ops/sec
Recursive deep clone 2019790.0 Ops/sec
Map deep clone 2039934.6 Ops/sec
Object.assign shallow clone 26912642.0 Ops/sec
structuredClone 296000.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:
  • Lodash cloneDeep

  • Native map deep slice(turns objects into arrays)

  • Native JSON parse

  • Native map deep slice at 0(turns objects into arrays)

  • Native map(shallow clone)

  • Recursive deep clone

  • Map deep clone

  • Object.assign shallow clone

  • structuredClone